Space telegraphy.



No. 800,658. PATENTED OCT. 3, 1905. L KITSEB.

SPACE TELEGRAPHY.

APPLICATION FILED JUNE 17,1905.

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SPACE TELEGRAPHY.

Specification of Letters Patent.

Patented Oct. 3, 1905.

Application filed June 17,1905. Serial No. 265,770.

network of wires adjacent the railroad-tracks,

and any transmitting or receiving device of an elevation not higher oreven lower than the hues of transmission strung along the road of travelwill be greatly interfered with by such transmitting-lines. To devise aneffective system of space telegraphy for railroads, it is necessarythat'the stations on the car should be provided with aerial conductorsreaching to a greater height than the network of wires usually strung onpoles following such roads. At the first glance it would seemcomparatively easy to provide the roof of cars to be used for wirelessstations with an upright reaching to a greater height than the lines oftransmission, but bridges, tunnels, and often crossing wires do notpermit the employment of any device extending to any great degree abovethe roof of the car.

It is the aim of my invention to overcome this difliculty, and in thedrawing, which illustrates in diagrammatic View my invention, I haveshown a simple and preferred form of using moving cars as stations forthe receiving as well as transmitting of wireless messages withoutinterference of near-by conductors.

The drawing, as said above, illustrates my invention as applied to thecar in a diagrammatic view, the car being indicated in outlines.

A is an arm or pole secured to the roof of the car by the bracket B andheld in vertical position by the means 0, here illustrated asa weight.This arm or pole is pivoted at D and is provided with the means E, hereshown as a rope, for the purpose of pulling the pole to a horizontal orpartially-horizontal position, as will later on be more fully described.

1 is an aerial conductor for the purpose of transmitting messages to thenext car or station. F represents similar means for the pn r pose ofreceiving impulses from other cars or stations. These means may beinsulated from each other by the metallic shield G and G".

H is a motor connected with a source of current, here shown as thebattery I. This motor is adapted through its rotation to draw the poledownward.

K is an upright placed on the road-bed near the side of the car.

L is a movable lever attached to the side of the car, preferably withthe aid of the bracket L.

M is a contact.

The movable lever L as well as the contact M are connected to the sourceof current N, and the electromagnet 0 through the wires 1 and 2. Theelectromagnet O is provided with the armature P, adapted to act as astop for the wheel B. This wheel is as to one half of its peripheryconducting and as to the other half of its periphery non-conducting, theconducting part being designated as r and the non-conducting part beingdesignated as r. The wheel is also provided with two indents,(designated by the letters s and s, respectively.) This wheel is adaptedto be rotated by a spring or other means in the direction of theunfeathercd arrow. The wheel itself is connected through wire 3 with thesource of current I, and the armature P is connected through wire 4 withone terminal of the motor H. The aerial conductor F is connected withthe interposition of a transmitting device through the wheel with theground Z, and the aerial conductor F is connected with the interpositionof the receiving device through the wheel of the car proper to theground Z.

T is the transmitting-key.

I have not illustrated the car in detail, but have only shown thegeneral arrangement of the devices and their placement as to the carproper.

The modus ope rand): of this form of my invention is as follows:Normally the upright A, with its aerial conductors F and 1*", reaches toa height greater than the height of the surrounding wires or otherconductors; but where the road is intersected by bridges or otherdevices which would prevent the passage of an elevated device, such asthe arm or pole A, I provide the road-bed with the stationary projectionor contact and provide the lower partof the car with a movable device,which when brought in contact with the stationary contact will changeits position and through this change will close a circuit, and throughthe closing of this circuit the armature of an electromagnet is drawnaway from the contact-wheel, which thereby revolves and produces acontact between the armature and its conducting 1')eriphery, therebyclosing a circuit which includes a motor, around the axis of which arope or wire is carried drawing the pole or arm downward suificientlyfor the clearance of such objects as bridges, tunnels, Sac. After thebridge or tunnel is passed asecond stationary contact connects with themovable lever; but through this closing of the circuit the contact-wheelwill revolve in a manner so as to bring the armature out of contact withthe conducting part and in contact with the nonconducting part of saidwheel, thcrebyopening the circuit containing the motor, and the poleimpelled by the weight Will new resume its former position.

lhave not described here the difl'erentfunctions of the aerialconductors, as this will form the subjectmatter of another application.So, also, havel only indicated the transmitting and receiving devices byan inclosure.

l/Vhen this system is used to notify one train that a second train is inthe same section, then it is best that the first train shall transmitimpulses to the train following, indicating its presence. With thissystem two or more cars can easily communicate with each other and theconductors or oflicers in charge can readily notify each other of theirpresence, and acollision can thereby be avoided.

I did not deem it necessary to illustrate the Whole system in which aseries of cars are employed. Suffice it to say that a car entering on asection will first ascertain if impulses are transmitted to it beforetransmitting impulses to the car following. Each car can also beprovided with automatic transmitting and receiving devices, so as todispense with the services of an extra operator. With this system it isnot only possible to communicate from car to car, but also from movingcars to stationary points, and vice versa.

Having now described my invention, what I claim as new, and desire tosecure by Letters Patent, is

1. In a system of space telegraphy, one or more moving vehicles providedeach with an aerial conductor reaching over the top of said vehicle, andmeans to decrease the height of this conductor automatically atpredetermined points.

2. In a system of space telegraphy, a moving vehicle an aerial conductorreaching over the top of said vehicle, means to keep said aerialconductor in place, means to lower said conductor, said means dependenton the closing of an electric circuit, said electric circuit inoperative relation to actuating means, part of said means carried bysaid car or cars and part of said means distributed along the road oftravel.

3. In a system of space telegraphy, a moving vehicle, a verticalconductor reaching over the top of said vehicle, means to bring saidconductor to a more or less horizontal position, said means embracingelectromagnetic means in operative relation to a circuit adapted to beclosed, and opened through actuating means, part of said means travelingwith said vehicle and part of said means located on the road of travel.

1. In asystem of space telegraphy in which a moving vehicle is used astransmitting and receiving station, a revolving contact-wheel partiallyconducting and partially non-conducting, means to close through saidwheel an electric circuit including means to dillerentiate the height ofan aerial conductor.

In testimony whereof I hereby sign my name, in the presence of twosubscribing witnesses, this 14th day of June, A. I). 1905.

ISIDOR KITSEE.

\Vitnesses:

EDITH It. S'riLLnY, H. C. Ynr'rnu.

